Septic Tank Cleaning in Hattiesburg, MS

Standard septic pumping removes liquid waste and loose solids. But if your system has gone years without service, hardened sludge and scum build up on the tank walls and baffles that a simple pump-out won’t touch. Hattiesburg Septic Pros connects you with local technicians who provide full septic tank cleaning — emptying the tank, scrubbing the interior, clearing the baffles, and restoring near-original capacity.

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Pumping vs. Cleaning — What’s the Difference?

Service What It Does
Pumping Removes liquid waste and soft solids; quick, 30–60 minutes
Cleaning Pumps the tank + high-pressure rinse of walls, baffles, and floor; restores full capacity

When do you need a full cleaning?

  • System hasn’t been serviced in 7+ years
  • Recurring slow drains even after pumping
  • Purchasing an older home with unknown service history
  • Post-repair cleanup after a backup event
  • Preparing a Hattiesburg property for sale and want a clean inspection report

The Cleaning Process

  1. Locate and expose the tank — dig down to the lid if needed
  2. Initial pump-out — remove all liquid waste and soft solids
  3. Interior rinse — high-pressure water jets break up hardened deposits on tank walls, floor, and ceiling
  4. Baffle inspection — inlet and outlet baffles direct flow; cracked or missing baffles are a major cause of drain field failure
  5. Final vacuum — remove all rinsed material
  6. Visual inspection — check for cracks, root intrusion, and structural integrity
  7. Written report — findings and recommendations before you pay

Septic Cleaning Costs in the Hattiesburg Area

Service Typical Range
Full cleaning (1,000–1,500 gal) $350–$500
Large tank cleaning (2,000+ gal) $500–$700
Baffle replacement (if needed) +$100–$250
Tank lid locating / excavation +$75–$200

Pricing in Forrest and Lamar counties tends toward the lower end of Mississippi ranges. Upfront quotes before work begins — no surprises.


Frequently Asked Questions

How long does a full tank cleaning take?

Typically 60–120 minutes for a residential tank, depending on how much buildup is present and tank accessibility — longer than a standard pump-out.

Do I need to prepare anything beforehand?

Clear access to the septic tank lid area and have water available nearby for the rinse. Move any landscaping or decorative items over the tank before the technician arrives.

Will cleaning fix a slow-draining system?

If the problem is tank-side (full tank or clogged baffles), yes. If the issue is a failing drain field, cleaning the tank won’t solve it — but the inspection during cleaning will identify that. Better to know sooner.


Schedule your septic tank cleaning: Call {{PHONE}} or visit our contact page. Serving Hattiesburg, Petal, Oak Grove, Sumrall, Purvis, and all of South Mississippi.


Hattiesburg Septic Pros is a referral and lead generation service. We are not a licensed septic contractor. When you contact us, we connect you with licensed, independent septic professionals who service the Hattiesburg, MS area. All work is performed by and contracted directly with those local professionals.

Hattiesburg Septic Pros is a referral and lead generation service. We are not a licensed septic contractor. When you contact us, we connect you with licensed, independent septic professionals who service the Hattiesburg, MS area. All work is performed by and contracted directly with those local professionals.